Wedding
Birthday
Travel
Memorial
Graduation
Baby
Anniv.
Family
Real Estate
BusinessWeddingBirthdayTravelMemorialGraduationBabyAnniv.FamilyReal EstateBusinessShrink MP4 or MOV videos for email, web, or social uploads. No upload, no watermark, no signup — your file stays in your browser.
Drag a video onto the page or click to browse.
Choose high, medium, or smallest — tradeoff between size and quality.
FFmpeg re-encodes the video using H.264 in your browser. Save the compressed MP4 to your computer.
Most camera phones produce 50-200 MB per minute of video, which makes them painful to email, slow to upload, and sometimes too large for Discord, WhatsApp, or Slack. Compressing a video to H.264 with a sensible CRF (constant rate factor) typically cuts the file size in half — and with CRF 28 or higher, often by 70-80% — with quality that's indistinguishable on a phone screen.
This tool uses FFmpeg's libx264 encoder with three CRF presets: 23 (high quality, ~50% size), 28 (balanced, ~30% size), and 32 (smallest, ~15-20% size). Lower CRF = higher quality + larger file. Audio is re-encoded to 128kbps AAC, which is transparent to nearly all listeners.
Yes, slightly — compression always trades size for quality. The high preset is visually transparent on most content; medium is the sweet spot for sharing.
Re-encoding is CPU-heavy and runs entirely on your machine. A 5-minute 1080p video typically takes 1-3 minutes to compress in browser.
No. Compression happens locally via FFmpeg.wasm. You can verify in the browser network tab.
Works, but takes much longer in-browser. For very large files use HandBrake on desktop.
AI scene pacing, music ducking, voice narration, and 4K export — free to try.
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